51384319634 has 32 divisors (see below), whose sum is σ = 78916239360. Its totient is φ = 25087974912.

The previous prime is 51384319627. The next prime is 51384319667. The reversal of 51384319634 is 43691348315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5036042 + ... + 5046234.

It is an arithmetic number, because the mean of its divisors is an integer number (2466132480).

Almost surely, 2^51384319634 is an apocalyptic number.

51384319634 is a deficient number, since it is larger than the sum of its proper divisors (27531919726).

51384319634 is a wasteful number, since it uses less digits than its factorization.

51384319634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10634.

The product of its digits is 933120, while the sum is 47.

The spelling of 51384319634 in words is "fifty-one billion, three hundred eighty-four million, three hundred nineteen thousand, six hundred thirty-four".